Kyodo News reported Wednesday that the 19-year-old Ishikawa also is pledging money for every birdie he makes. If he plays similar to last year, Ishikawa could wind up giving more than $2 million toward relief efforts.

He was No. 3 on the Japan Golf Tour money list in 2010, making just over $1.8 million, which includes his earnings from the majors and World Golf Championship. He led the tour by making 341 birdies last year, which could amount to another $400,000. His pledge was for 100,000 yen for each birdie.

Ishikawa won his first pro tournament as a 15-year-old amateur, and already has won nine times in Japan.

-AP